Auriol Mine, Casteldelfino, Cuneo Province, Piedmont, Italyi
| Regional Level Types | |
|---|---|
| Auriol Mine | Mine (Inactive) |
| Casteldelfino | Commune |
| Cuneo Province | Province |
| Piedmont | Region |
| Italy | Country |
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Latitude & Longitude (WGS84):
44° 35' 12'' North , 7° 7' 8'' East
Latitude & Longitude (decimal):
Type:
Mine (Inactive) - last checked 2026
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sampeyre | 566 (2014) | 5.7km |
| Pontechianale | 208 (2012) | 8.0km |
| Maddalena | 120 (2014) | 8.2km |
| Rore | 136 (2014) | 8.5km |
| Stroppo | 108 (2012) | 8.9km |
Other Languages:
Italian:
Miniera Auriol, Casteldelfino, Provincia di Cuneo, Piemonte, Italia
An old asbestos mine, operated between the mid-1950s and early 1970s, is located at the foot of Monte Auriol near the border with the Casteldelfino municipality.
The Auriol mine is the type locality for carlosturanite (Compagnoni et al., 1985), which appears as bundles of light brown, flexible fibres, up to several tens of centimetres in length along the [001] direction. The mineral is intergrown with fibrous diopside, garnet (andradite with a fibrous habit), and antigorite and often partly substituted by chrysotile and brucite. It develops in a close network of veins (from 0.1 mm to several centimetres thick) randomly cross-cutting the serpentinite. Usually other associated minerals can include opaque ore minerals (magnetite and Ni-Fe alloys); locally, titanclinohumite, perovskite, and a green uvarovite-rich garnet are also found. Carlosturanite was mistaken in the past for fibrous serpentine, and it has commonly been called 'metaxite' or 'metaxitic serpentine' (Zucchetti, 1968) or 'xylotile'. Carlosturanite-bearing veins are crosscut by the later monomineralic veins of antigorite, chrysotile, brucite, and magnesite.
Parallel intergrowths between [010] carlosturanite, [001] diopside, and [100] chrysotile fibres occur in extremely variable degrees from macroscopic to TEM scale; at the latter scale, brucite occurs in the presence of abundant chrysotile. Single fibres of carlosturanite are seldom larger than 0.2 μm.
The Auriol mine is the type locality for carlosturanite (Compagnoni et al., 1985), which appears as bundles of light brown, flexible fibres, up to several tens of centimetres in length along the [001] direction. The mineral is intergrown with fibrous diopside, garnet (andradite with a fibrous habit), and antigorite and often partly substituted by chrysotile and brucite. It develops in a close network of veins (from 0.1 mm to several centimetres thick) randomly cross-cutting the serpentinite. Usually other associated minerals can include opaque ore minerals (magnetite and Ni-Fe alloys); locally, titanclinohumite, perovskite, and a green uvarovite-rich garnet are also found. Carlosturanite was mistaken in the past for fibrous serpentine, and it has commonly been called 'metaxite' or 'metaxitic serpentine' (Zucchetti, 1968) or 'xylotile'. Carlosturanite-bearing veins are crosscut by the later monomineralic veins of antigorite, chrysotile, brucite, and magnesite.
Parallel intergrowths between [010] carlosturanite, [001] diopside, and [100] chrysotile fibres occur in extremely variable degrees from macroscopic to TEM scale; at the latter scale, brucite occurs in the presence of abundant chrysotile. Single fibres of carlosturanite are seldom larger than 0.2 μm.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
20 valid minerals. 1 (TL) - type locality of valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Andradite Formula: Ca3Fe3+2(SiO4)3 |
| ⓘ 'Andradite-Uvarovite Series' |
| ⓘ Antigorite Formula: Mg3(Si2O5)(OH)4 |
| ⓘ Aragonite Formula: CaCO3 References: |
| ⓘ Artinite Formula: Mg2(CO3)(OH)2 · 3H2O References: |
| ⓘ Awaruite Formula: Ni3Fe |
| ⓘ Brucite Formula: Mg(OH)2 |
| ⓘ Carlosturanite (TL) Formula: (Mg,Fe,Ti)21(Si,Al)12O28(OH)34 · H2O Type Locality: |
| ⓘ Chrysotile Formula: Mg3(Si2O5)(OH)4 |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Heazlewoodite Formula: Ni3S2 References: |
| ⓘ Hydromagnesite Formula: Mg5(CO3)4(OH)2 · 4H2O References: |
| ⓘ Hydroxylclinohumite Formula: Mg9(SiO4)4(OH)2 Description: The mineral reported by Compagnoni et al. (1985) as "titanclinohumite" is attributable to Ti-bearing hydroxylclinohumite. |
| ⓘ Hydroxylclinohumite var. Titanclinohumite Formula: (Mg,Ti)9(SiO4)4(OH,O,F)2 Description: Ti-bearing variety of hydroxylclinohumite. |
| ⓘ Mackinawite Formula: FeS References: |
| ⓘ Magnesite Formula: MgCO3 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Pentlandite Formula: (NixFey)Σ9S8 References: |
| ⓘ Perovskite Formula: CaTiO3 |
| ⓘ Pyrite Formula: FeS2 References: |
| ⓘ Pyrite var. Bravoite Formula: (Fe,Ni)S2 References: |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Zaratite Formula: Ni3(CO3)(OH)4 · 4H2O ? References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Awaruite | 1.AE.20 | Ni3Fe |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Heazlewoodite | 2.BB.05 | Ni3S2 |
| ⓘ | Pentlandite | 2.BB.15 | (NixFey)Σ9S8 |
| ⓘ | Mackinawite | 2.CC.25 | FeS |
| ⓘ | Pyrite var. Bravoite | 2.EB.05a | (Fe,Ni)S2 |
| ⓘ | 2.EB.05a | FeS2 | |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Perovskite | 4.CC.30 | CaTiO3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Brucite | 4.FE.05 | Mg(OH)2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Magnesite | 5.AB.05 | MgCO3 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| ⓘ | Hydromagnesite | 5.DA.05 | Mg5(CO3)4(OH)2 · 4H2O |
| ⓘ | Artinite | 5.DA.10 | Mg2(CO3)(OH)2 · 3H2O |
| ⓘ | Zaratite | 5.DA.15 | Ni3(CO3)(OH)4 · 4H2O ? |
| Group 9 - Silicates | |||
| ⓘ | Chrysotile | 9.00. | Mg3(Si2O5)(OH)4 |
| ⓘ | Andradite | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
| ⓘ | Hydroxylclinohumite var. Titanclinohumite | 9.AF.55 | (Mg,Ti)9(SiO4)4(OH,O,F)2 |
| ⓘ | 9.AF.55 | Mg9(SiO4)4(OH)2 | |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Carlosturanite (TL) | 9.DJ.25 | (Mg,Fe,Ti)21(Si,Al)12O28(OH)34 · H2O |
| ⓘ | Antigorite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
| Unclassified | |||
| ⓘ | 'Andradite-Uvarovite Series' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| H | ⓘ Artinite | Mg2(CO3)(OH)2 · 3H2O |
| H | ⓘ Brucite | Mg(OH)2 |
| H | ⓘ Carlosturanite | (Mg,Fe,Ti)21(Si,Al)12O28(OH)34 · H2O |
| H | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| H | ⓘ Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| H | ⓘ Zaratite | Ni3(CO3)(OH)4 · 4H2O ? |
| H | ⓘ Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,O,F)2 |
| H | ⓘ Hydroxylclinohumite | Mg9(SiO4)4(OH)2 |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Artinite | Mg2(CO3)(OH)2 · 3H2O |
| C | ⓘ Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| C | ⓘ Magnesite | MgCO3 |
| C | ⓘ Zaratite | Ni3(CO3)(OH)4 · 4H2O ? |
| O | Oxygen | |
| O | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| O | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Artinite | Mg2(CO3)(OH)2 · 3H2O |
| O | ⓘ Brucite | Mg(OH)2 |
| O | ⓘ Carlosturanite | (Mg,Fe,Ti)21(Si,Al)12O28(OH)34 · H2O |
| O | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| O | ⓘ Magnesite | MgCO3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Perovskite | CaTiO3 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Zaratite | Ni3(CO3)(OH)4 · 4H2O ? |
| O | ⓘ Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,O,F)2 |
| O | ⓘ Hydroxylclinohumite | Mg9(SiO4)4(OH)2 |
| O | ⓘ Andradite-Uvarovite Series | |
| F | Fluorine | |
| F | ⓘ Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,O,F)2 |
| Mg | Magnesium | |
| Mg | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| Mg | ⓘ Artinite | Mg2(CO3)(OH)2 · 3H2O |
| Mg | ⓘ Brucite | Mg(OH)2 |
| Mg | ⓘ Carlosturanite | (Mg,Fe,Ti)21(Si,Al)12O28(OH)34 · H2O |
| Mg | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| Mg | ⓘ Magnesite | MgCO3 |
| Mg | ⓘ Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,O,F)2 |
| Mg | ⓘ Hydroxylclinohumite | Mg9(SiO4)4(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Carlosturanite | (Mg,Fe,Ti)21(Si,Al)12O28(OH)34 · H2O |
| Si | Silicon | |
| Si | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Si | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| Si | ⓘ Carlosturanite | (Mg,Fe,Ti)21(Si,Al)12O28(OH)34 · H2O |
| Si | ⓘ Chrysotile | Mg3(Si2O5)(OH)4 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,O,F)2 |
| Si | ⓘ Hydroxylclinohumite | Mg9(SiO4)4(OH)2 |
| Si | ⓘ Andradite-Uvarovite Series | |
| S | Sulfur | |
| S | ⓘ Pyrite var. Bravoite | (Fe,Ni)S2 |
| S | ⓘ Heazlewoodite | Ni3S2 |
| S | ⓘ Mackinawite | FeS |
| S | ⓘ Pentlandite | (NixFey)Σ9S8 |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Perovskite | CaTiO3 |
| Ca | ⓘ Andradite-Uvarovite Series | |
| Ti | Titanium | |
| Ti | ⓘ Carlosturanite | (Mg,Fe,Ti)21(Si,Al)12O28(OH)34 · H2O |
| Ti | ⓘ Perovskite | CaTiO3 |
| Ti | ⓘ Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,O,F)2 |
| Cr | Chromium | |
| Cr | ⓘ Andradite-Uvarovite Series | |
| Fe | Iron | |
| Fe | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Fe | ⓘ Awaruite | Ni3Fe |
| Fe | ⓘ Pyrite var. Bravoite | (Fe,Ni)S2 |
| Fe | ⓘ Carlosturanite | (Mg,Fe,Ti)21(Si,Al)12O28(OH)34 · H2O |
| Fe | ⓘ Mackinawite | FeS |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Andradite-Uvarovite Series | |
| Ni | Nickel | |
| Ni | ⓘ Awaruite | Ni3Fe |
| Ni | ⓘ Pyrite var. Bravoite | (Fe,Ni)S2 |
| Ni | ⓘ Heazlewoodite | Ni3S2 |
| Ni | ⓘ Pentlandite | (NixFey)Σ9S8 |
| Ni | ⓘ Zaratite | Ni3(CO3)(OH)4 · 4H2O ? |
Other Regions, Features and Areas containing this locality
Eurasian PlateTectonic Plate
- AlpsAccretionary Complex
EuropeContinent
- The AlpsMountain Range
Italy
- Piedmont
- Cuneo Province
- Monviso GroupMountain Range
- Varaita ValleyValley
- Cuneo Province
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Auriol Mine, Casteldelfino, Cuneo Province, Piedmont, Italy